228 
BRITISH BEES. 
the length of the tongue, the basal joint longer than 
the two following, the remainder gradually decreasing 
in length, all conterminous; labium half the length of 
the cibarial apparatus, broad; maxilla slender, sub- 
hastate, as long as the tongue; maxillary palpi six- 
jointed, the basal joint robust, subclavate, as is the 
second joint, but more slender, the remainder filiform, 
gradually declining in length. Thorax oval; prothorax 
inconspicuous; mesothorax with a deep central groove; 
bosses protuberant; scutellum and post-scutellum lunu- 
late; metathorax gibbous; wings with the marginal 
cell slightly appendiculated, two submarginal cells and a 
third commenced, the second receiving both the recur¬ 
rent nervures, the first close to its commencement and 
the second beyond its centre ; the legs densely pilose, 
the posterior pair having their coxa and trochanters 
beneath, their femora in front, above, the tibia and 
planta all round, covered with long hair; claws bifid. 
Abdomen ovate, the base subtruncate, the basal seg¬ 
ment having a deep central impression at its base, the 
fifth segment fringed with short dense hair, the terminal 
segment with a triangular plate carinated in the centre, 
and fimbriated laterally, and all very slightly con¬ 
stricted. 
The male scarcely differs, except in having the head 
rather more globose and more pubescent; and the legs, 
although still hairy, much less so than in the female. 
native species. 
1. Banksiana, Kirby, <$ ? . 4-5J lines. 
ursinus, Curtis, iii. 101. (Plate VI. fig. 1 <$ $ .) 
2. calcaratus, Scopoli, $ . 3-4 lines. 
ursinus, Kirby. 
